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Temporary bacteremia due to intraoperative blood salvage during cardiovascular surgery
Shunya Shindo1, Harunobu Matsumoto, Kenji Kubota
1Second Department of Surgery, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Tamaho-cho, Nakakoma-gun, Yamanashi 409-3898, Japan. sshindo@yamanashi.ac.jp
Background:
The significance of positive blood cultures obtained after intraoperative blood salvage is unclear.
Methods:
Sixty-four patients who underwent cardiopulmonary bypass and 52 patients with use of a blood salvage device underwent blood culture and examination of inflammatory responses.
Results:
Positive blood cultures of transfused blood were identified in 16% of patients who underwent cardiopulmonary bypass and 67% with blood salvage. Thoracic operations utilizing either device demonstrated positive cultures in 21% of cases, whereas 70% of abdominal operations demonstrated positive cultures. However, on postoperative day 1, all blood cultures were negative. In addition, there was no significant difference in the inflammatory responses between culture-positive and culture-negative groups.
Conclusions:
Although there is a high incidence of positive blood culture present during blood salvage and abdominal surgery, postoperative host responses are similar in both groups. These data support the safe use of intraoperative blood salvage in elective cardiovascular surgery with attention to routine sterile technique.
